Improving Edge Quality in Film Applications with Tangent Shear Slitting

Size: px
Start display at page:

Download "Improving Edge Quality in Film Applications with Tangent Shear Slitting"

Transcription

1 Improving Edge Quality in Film Applications with Tangent Shear Slitting Presented by: Sean Craig General Manager, Maxcess-Tidland Date: October 17, 2017

2 What is Fracture Mechanics? The study of how things come apart Understanding why a crack propagates The study of the forces that separate things Most analysis concentrates on how to prevent fractures

3 but in slitting, we want to control and focus the fracture.

4 Plastic Flow Films react to obstacles in their path, depending on velocity, density, rigidity, temperature, crystalline structure, shear characteristics, etc

5 A less than desirable result For certain films, poor edge quality is disastrous to the process.

6 Why Razor Sharp isn t good enough Lateral (cross-machine Y mode) tensile stress forces the web laterally. Razor Slitting creates a "controlled crack" ahead of the blade edge. The physical properties of the material and the shape of the blade edge determines how and where this crack forms. The farther away from the tip the crack forms, the less stable the process. Edge flaws may develop, and uncontrolled tearing or splitting may occur.

7 Why Razor Sharp isn t good enough Fracture (crack propagation) occurs ahead of the razor Low Elongation or thick materials "crack" farther ahead of the blade edge. High Elongation or thin materials "crack" closer to the blade edge.

8 Why Razor Sharp isn t good enough The ratio of web tension to the material s yield stress must be considered. Since the blade is dragging against the web its resistance must be added to the tension force. This has the potential of exceeding the film s elastic limit as it encounters the blades shoulders immediately adjacent to the slit. Fragments, stretched, thickened, and deformed edges are the result. A general rule of thumb is that the web tension in the slitting zone should not exceed about 10% of the material s elastic limit*. * Ref: Wm Hawkins Plastic, Film, & Foil Web Handling Guide

9 Why Razor Sharp isn t good enough 50µ Standard shrink, oriented PVC film

10 A better solution: Tangent Shear Slitting Films Shear Shear stress in the vertical ( Z mode) avoids lateral cross-web conflict.

11 Shear Slitting Forces are perpendicular to the crack Crack is sheared out-of-plane Crack propagation is concentrated in a precise and focused location. Modes of Crack Displacement

12 Starting point for films: Tangent shear slitting Closely spaced infeed and outfeed idler rolls to suppress flutter 90mm/150mm upper blade and lower anvil (1.5:1.0 ratio) The Slitter Table The Slitter Table is a sacred zone The web must not be disturbed by any outside force as it passes over the Slitter Table. Maintain uniform tension, speed, flatness, guiding etc. across the entire length of the Slitter Table.

13 The Slitter Table

14 Manage tension in the slitter tension zone Tension: as needed for unwinding Tension: as needed for roll profile Unwind Tension Zone *Ref: Wm Hawkins Plastic, Film and Foil Web Handling Guide Slitter Tension Zone Tension: <10% of product yield strength* Rewind Tension Zone

15 Web properties critical to slitting Caliper: The measured thickness of the web Density: More than the basis weight or gsm. Elongation: How much does it stretch? Stiffness: What happens when it is bent? Tensile Strength: How resistant is it to slitting? Abrasiveness: Will it eat my blades? Compressibility: If it compresses, will it recover?

16 Critical factors to control in tangent shear slitting Slitter geometry Blade profile/sharpness Overlap Cant angle Overspeed Sideforce

17 Slitter Geometry 90mm/150mm top blade to bottom blade recommended. Influences Setback for tangent slitting Typically 1/8 to 3/8 Closing the nip Supporting the web

18 Overlap Upper blade overlap of lower anvil Influences: Web distortion Nip speed Nip geometry Blade wear and life

19 Overspeed Web speed fpm/mpm Web bubble ahead of slitter Influences Slit quality Blade wear and life

20 Blade geometry influences closing the nip and supporting the web. Overlap influences web distortion and nip speed, Overspeed influences slit quality and blade wear.

21 Blade profile/sharpness Influences: Web path through slitter Material distortion around blade Slit quality Blade life

22 Micro-finished, single bevel upper slitters with polished rms 2-4 finish

23 Wider blade profiles deflect the web down to avoid lateral web edge tensile stress typical with razor profile blades.

24 Slitter Ring Spacing Generous space between rings Lateral crowding avoided Single bevel blade with low grind angle minimizes edge deformation True shear geometry Lateral tensile stress imposed by narrow blade Blade acts as a wedge to smear against the cut edge. Raised edge bead and stretched edges likely Thin, acutely ground, highly polished blade tip is needed

25

26

27 Shear 40x Oriented PVC Supported Edge Unsupported Edge (50µ Std PVC)

28 Cant Angle Influences: Closing the nip Blade wear and life Sideforce Slit edge quality

29 Keep the nip closed Cant Angle Upper blade cant angle is a critical component to keeping the nip closed.

30 Keep the nip closed Open Nip No slitting will occur in an open nip. Tearing, ripping, shredding, bending, yes but no slitting. The fracture is no longer controlled.

31 Side Force 1 to 20 lbs typical force Influences Traction to drive upper blade Closing the nip Blade wear and life

32 Speed of upper blade is controlled by traction with the lower anvil. Side force directly affects traction. Not enough side force, not enough traction to drive the upper blade.

33 Tangent shear system Permits slitter nip synchronization Large lower slitters >1.5:1.0 lower anvil diameter ratio Recommendations Manage the tension at the nip point Do not exceed 10% of the material yield strength Isolate the tension at the slitter table when possible if material tension varies Permits varying tension to match the film's thickness and yield characteristics Microfinished, single bevel upper slitters Rm 2-4 finish Adequate slitter gap Tangent system, unsupported side Adequate overspeed Accomodates re-grind diameters variables

In 1950, plastic film was relatively

In 1950, plastic film was relatively TECHNICAL REPORT BY REINHOLD SCHABLE, APPLICATIONS TECHNOLOGY MANAGER, TIDLAND CORP. Slitting Technology for Film Substrates In 1950, plastic film was relatively uncommon, today it is everywhere. Back

More information

High Speed Shear Slitting: Facing the Issues

High Speed Shear Slitting: Facing the Issues High Speed Shear Slitting: Facing the Issues By: Reinhold Schable, Tidland Corp. Presented By: Mike Flannigan, District Manager mflannigan@maxcessintl.com, 828-248-9582 AIMCAL Fall Technical Conference

More information

D R SLITTING ROLL & WEB DEFECTS

D R SLITTING ROLL & WEB DEFECTS D R SLITTING ROLL & WEB DEFECTS D R SLITTING EDUCATOR/CONSULTANT DAVE RUMSON drumson.wordpress.com Converting Quarterly Columnist LinkedIn Slitting Community Group AIMCAL 2 Day Web Slitting Technology

More information

MANUFACTURING TECHNOLOGY

MANUFACTURING TECHNOLOGY MANUFACTURING TECHNOLOGY UNIT II SHEET METAL FORMING PROCESSES Sheet Metal Introduction Sheet metal is a metal formed into thin and flat pieces. It is one of the fundamental forms used in metalworking,

More information

Technical Tips. Using Bundle Breaker (rotary corrugated applications) In General, bundle breaker rule is determined based on the following criteria:

Technical Tips. Using Bundle Breaker (rotary corrugated applications) In General, bundle breaker rule is determined based on the following criteria: Technical Tips 080215_BBarticle Using Bundle Breaker (rotary corrugated applications) Bundle Breaker: a mechanical device designed specifically to separate ganged, multiout sheets after they have been

More information

Module 3 Selection of Manufacturing Processes

Module 3 Selection of Manufacturing Processes Module 3 Selection of Manufacturing Processes Lecture 4 Design for Sheet Metal Forming Processes Instructional objectives By the end of this lecture, the student will learn the principles of several sheet

More information

SNS - The Heart of Understanding and Applying Slitting

SNS - The Heart of Understanding and Applying Slitting SNS - The Heart of Understanding and Applying Slitting Dominique Gallou Product Manager Mario Cotta Cincinnati, OH 45242 ABSTRACT All slitting occurs @ the Spatial Nip-Point. The location of this Nip-Point

More information

Sheet Metal Forming. Part 1

Sheet Metal Forming. Part 1 Sheet Metal Forming Part 1 Sheet Metal Forming For products with versatile shapes and lightweight Dates to 5000 B.C. Products include metal desks, file cabinets, appliances, car bodies, beverage cans Common

More information

Bending. the bend radius is measured to the inner surface of the bent part

Bending. the bend radius is measured to the inner surface of the bent part Bending the bend radius is measured to the inner surface of the bent part there is a plane which separates the tension and compression zones. This plane is called neutral axis. The position of neutral

More information

Corso di Studi di Fabbricazione

Corso di Studi di Fabbricazione Corso di Studi di Fabbricazione 3a Richiami dei processi tecnologici di trasformazione FUNDAMENTAL OF METAL FORMING 1 METAL FORMING Large group of manufacturing processes in which plastic deformation is

More information

Abrasive Machining Processes. N. Sinha, Mechanical Engineering Department, IIT Kanpur

Abrasive Machining Processes. N. Sinha, Mechanical Engineering Department, IIT Kanpur Abrasive Machining Processes N. Sinha, Mechanical Engineering Department, IIT Kanpur Introduction Abrasive machining involves material removal by the action of hard, abrasive particles. The use of abrasives

More information

1/2/2016. Lecture Slides. Screws, Fasteners, and the Design of Nonpermanent Joints. Reasons for Non-permanent Fasteners

1/2/2016. Lecture Slides. Screws, Fasteners, and the Design of Nonpermanent Joints. Reasons for Non-permanent Fasteners Lecture Slides Screws, Fasteners, and the Design of Nonpermanent Joints Reasons for Non-permanent Fasteners Field assembly Disassembly Maintenance Adjustment 1 Introduction There are two distinct uses

More information

Copyright 1997 Society of Manufacturing Engineers FUNDAMENTAL MANUFACTURING PROCESSES SHEET METAL SHEARING AND BENDING

Copyright 1997 Society of Manufacturing Engineers FUNDAMENTAL MANUFACTURING PROCESSES SHEET METAL SHEARING AND BENDING FUNDAMENTAL MANUFACTURING PROCESSES SHEET METAL SHEARING AND BENDING SCENE 1. CG: FBI warning SCENE 2. CG: disclaimer Always read the operating manual and safety information provided by the manufacturer

More information

(1) Brass, an alloy of copper and zinc, consists of 70% by volume of copper and 30% by volume of zinc.

(1) Brass, an alloy of copper and zinc, consists of 70% by volume of copper and 30% by volume of zinc. PhysicsAndMathsTutor.com 1 Q1. (a) Define the density of a material....... (1) Brass, an alloy of copper and zinc, consists of 70% by volume of copper and 30% by volume of zinc. density of copper = 8.9

More information

Influence of Lubrication and Draw Bead in Hemispherical Cup Forming

Influence of Lubrication and Draw Bead in Hemispherical Cup Forming INSTITUTE OF TECHNOLOGY, NIRMA UNIVERSITY, AHMEDABAD 382 481, 08-10 DECEMBER, 2011 1 Influence of Lubrication and Draw Bead in Hemispherical Cup Forming G. M. Bramhakshatriya *12, S. K. Sharma #1, B. C.

More information

Hail University College of Engineering Department of Mechanical Engineering. Sheet-Metal Forming Processes and Equipment. Ch 16

Hail University College of Engineering Department of Mechanical Engineering. Sheet-Metal Forming Processes and Equipment. Ch 16 Hail University College of Engineering Department of Mechanical Engineering Sheet-Metal Forming Processes and Equipment Ch 16 Sheet-Metal Forming Products made of sheet metals are all around us. They include

More information

Wire and tube Drawing

Wire and tube Drawing Wire and tube Drawing Drawing is an operation in which the cross-section of solid rod, wire or tubing is reduced or changed in shape by pulling it through a die. The principle of this procedure consist

More information

Unit IV Drawing of rods, wires and tubes

Unit IV Drawing of rods, wires and tubes Introduction Unit IV Drawing of rods, wires and tubes Drawing is a process in which the material is pulled through a die by means of a tensile force. Usually the constant cross section is circular (bar,

More information

Creasing and Folding are critical steps in the box forming process. Dipl. Ing. Lukas Pescoller

Creasing and Folding are critical steps in the box forming process. Dipl. Ing. Lukas Pescoller Creasing and Folding are critical steps in the box forming process Dipl. Ing. Lukas Pescoller Paperboard is A thick, single or multiply paper based material. composed of several layers of pulp fibers with

More information

Strip straighteners. Strip spectrum The following coil strips can be processed using our straightening

Strip straighteners. Strip spectrum The following coil strips can be processed using our straightening STRIP STRAIGHTENERS Strip straighteners SOPREM Precision Straighteners ensure your product quality. Distorted metal components are a thing of the past; today quality products are processed regardless of

More information

Conference contribution: The Choice of the Most Suitable Slitting System for Slitting Thin Aluminium Foils

Conference contribution: The Choice of the Most Suitable Slitting System for Slitting Thin Aluminium Foils Conference contribution: The Choice of the Most Suitable Slitting System for Slitting Thin Aluminium Foils Referent: Mr. Hermann Jeremies, DIENES Werke Agenda 1.0 Preface 2.0 Slitting Technology 3.0 Resume

More information

Tidland Slitter Shafts

Tidland Slitter Shafts TIDLAND SLITTING SOLUTIONS Tidland Slitter Shafts Installation, Operation and Maintenance EN MI 666265 1 D Knife Shaft (tubular) KT Knife Shaft (solid) KS Anvil Roll (KS with sleeves) AR IMPORTANT SAFETY

More information

Standard Test Methods for Bend Testing of Material for Ductility 1

Standard Test Methods for Bend Testing of Material for Ductility 1 Designation: E290 14 Standard Test Methods for Bend Testing of Material for Ductility 1 This standard is issued under the fixed designation E290; the number immediately following the designation indicates

More information

Diamond Wire Guidance.

Diamond Wire Guidance. Diamond Wire Guidance www.mactechoffshore.com An overview of wire types and applications There are many different types of diamond wire, each with advantages and best use applications depending on the

More information

METZNER MACHINE SERIES

METZNER MACHINE SERIES METZNER MACHINE SERIES THIS SECTION CONTAINS BLADES FOR THE FOLLOWING MACHINE SERIES: AM-130 / 150 ST-OB 150 / 30 / 400 AM-180 METZNER MACHINE SERIES Your Global Source for Wire Processing Perishable Tooling

More information

LESSON 15 TESTING OF TEXTILE FABRICS

LESSON 15 TESTING OF TEXTILE FABRICS LESSON 15 TESTING OF TEXTILE FABRICS STRUCTURE 15.0 OBJECTIVES 15.1 INTRODUCTION 15.2 FABRIC THICKNESS 15.3 WEIGHT OF THE FABRIC 15.4 THREAD DENSITY OF A WOVEN FABRIC 15.5 CREASE RECOVERY OF A FABRIC 15.6

More information

Technical Datasheet #0051. Extrusion cutter blade design Eight pointers to a better cut finish

Technical Datasheet #0051. Extrusion cutter blade design Eight pointers to a better cut finish Technical Datasheet #0051 Blade shape & position, thickness, width, length, and bevelling & sharpening - here s a look at the critical aspects of an area too often overlooked or else taken for granted.

More information

Dowel. Design. Performance-Based World of Concrete Official Show Issue. Lift-truck design changes require a new look at joint durability

Dowel. Design. Performance-Based World of Concrete Official Show Issue. Lift-truck design changes require a new look at joint durability 2007 World of Concrete Official Show Issue January 2007 Performance-Based Dowel Lift-truck design changes require a new look at joint durability Design By Wayne W. Walker and Jerry A. Holland S erviceability

More information

tools cutters 524 orderline: larsson side cutters, larsson end cutters tools

tools cutters 524 orderline: larsson side cutters, larsson end cutters tools cutters larsson side cutters, larsson end cutters Side Cutters: 999 720 Diagonal cutters, pointed jaws (3054) flush cut for wire Ø 0.35-1.00mm 29.75 999 721 Diagonal cutters pointed jaws (3055) regular

More information

Welded connections Welded connections are basically the same design in AISI as in AISC. Minor differences are present and outlined below.

Welded connections Welded connections are basically the same design in AISI as in AISC. Minor differences are present and outlined below. Cold-Formed Steel Design for the Student E. CONNECTIONS AND JOINTS E1 General Provisions Connections shall be designed to transmit the maximum design forces acting on the connected members. Proper regard

More information

Powder Actuated Fastening INTRODUCTION

Powder Actuated Fastening INTRODUCTION Powder Actuated Fastening INTRODUCTION Powder actuated fastening systems provide a cost effective method of attaching fixtures for light duty, static load conditions. Powers' systems consist of specially

More information

The end-to-end joining of coils of strip has grown in

The end-to-end joining of coils of strip has grown in Coil-to-coil joining with laser welding The combination of steel strip edge preparation via laser cutting, accurate strip positioning systems, and laser welding in a single unit provides the optimum coil-to-coil

More information

Chapter Four, Fitting out the Shell

Chapter Four, Fitting out the Shell Chapter Four Fitting out the Shell This chapter outlines the process for fitting the parts that go into a round or stave back shell. Square back sound boxes usually have the cap and base of the sound box

More information

MECHANICAL ASSEMBLY John Wiley & Sons, Inc. M. P. Groover, Fundamentals of Modern Manufacturing 2/e

MECHANICAL ASSEMBLY John Wiley & Sons, Inc. M. P. Groover, Fundamentals of Modern Manufacturing 2/e MECHANICAL ASSEMBLY Threaded Fasteners Rivets and Eyelets Assembly Methods Based on Interference Fits Other Mechanical Fastening Methods Molding Inserts and Integral Fasteners Design for Assembly Mechanical

More information

STABILITY. SECURITY. INTEGRITY.

STABILITY. SECURITY. INTEGRITY. MODEL 150 HELICAL ANCHOR SYSTEM PN #MBHAT STABILITY. SECURITY. INTEGRITY. 150 Helical Anchor System About Foundation Supportworks is a network of the most experienced and knowledgeable foundation repair

More information

KEITH PANEL SYSTEMS FUNDERMAX- MAX EXTERIOR CONCEALED FASTENERS PRESSURE EQUALIZED WALL SYSTEM

KEITH PANEL SYSTEMS FUNDERMAX- MAX EXTERIOR CONCEALED FASTENERS PRESSURE EQUALIZED WALL SYSTEM S Y S T E M D E T A I L S FUNDERMAX- MAX EXTERIOR CONCEALED FASTENERS PRESSURE EQUALIZED WALL SYSTEM PAGE TITLE PAGE Table of Contents Fundermax Max Exterior Product Information Design and Installation

More information

FILOMAT MACHINE SERIES

FILOMAT MACHINE SERIES FILOMAT MACHINE SERIES THIS SECTION CONTAINS BLADES FOR THE FOLLOWING MACHINE SERIES: ASM 1000 PSAM Your Global Source for Wire Processing Perishable Tooling www.lakesprecision.com 227 FILOMAT ASM 1000

More information

BEARING CAPACITY CHECK OF ALUMINUM PROFILES

BEARING CAPACITY CHECK OF ALUMINUM PROFILES Construcţii Bearing capacity check of aluminum profiles C. Grigorasenco BEARING CAPACITY CHECK OF ALUMINUM PROFILES Cristian GRIGORASENCO CS III, INCERC Bucharest Branch, e-mail: grigorasenco@incerc.ro

More information

Javelin SLITTING PROBLEMS. Model: J800/900 MANUAL SINGLE KNIFE SLITTER TROUBLESHOOTING HANDBOOK

Javelin SLITTING PROBLEMS. Model: J800/900 MANUAL SINGLE KNIFE SLITTER TROUBLESHOOTING HANDBOOK Javelin the leading edge in converting technology for the Paper Film and Foil industries Model: /900 MANUAL SINGLE KNIFE SLITTER TROUBLESHOOTING HANDBOOK SLITTING PROBLEMS Javelin Machinery (Australia)

More information

# Reducing Springback using post-stretching with stake beads By Tanmay Gupta, Ali Fallahiarezoodar, and Dr. Taylan Altan

# Reducing Springback using post-stretching with stake beads By Tanmay Gupta, Ali Fallahiarezoodar, and Dr. Taylan Altan Reducing Springback using post-stretching with stake beads By Tanmay Gupta, Ali Fallahiarezoodar, and Dr. Taylan Altan #688-4 Reducing springback, especially in forming of Advanced High Strength Steels

More information

How an ink jet printer works

How an ink jet printer works How an ink jet printer works Eric Hanson Hewlett Packard Laboratories Ink jet printers are the most common type of printing devices used in home environments, and they are also frequently used personal

More information

Forming - Blanking. Manufacturing Technology II Lecture 6. Prof. Dr.-Ing. Dr.-Ing. E.h. F. Klocke

Forming - Blanking. Manufacturing Technology II Lecture 6. Prof. Dr.-Ing. Dr.-Ing. E.h. F. Klocke Forming - Blanking Manufacturing Technology II Lecture 6 Laboratory for Machine Tools and Production Engineering Chair of Manufacturing Technology Prof. Dr.-Ing. Dr.-Ing. E.h. F. Klocke Seite 1 Content

More information

Manufacturing Processes (1)

Manufacturing Processes (1) Manufacturing Processes (1) Chapter Twenty: Sheet Metalworking Dr. Eng. Yazan Al-Zain Department of Industrial Engineering 1 Introduction Sheet Metalworking includes cutting and forming operations performed

More information

The Behaviour Of Round Timber Sections Notched Over The Support On The Tension Face. Justin Dewey

The Behaviour Of Round Timber Sections Notched Over The Support On The Tension Face. Justin Dewey The Behaviour Of Round Timber Sections Notched Over The Support On The Tension Face Justin Dewey Need for research In Queensland there are approximately 400 timber bridges still in use. Very little research

More information

Optimising fabric quality, finishing processes and machinery through the use of fabric objective measurement

Optimising fabric quality, finishing processes and machinery through the use of fabric objective measurement Optimising fabric quality, finishing processes and machinery through the use of fabric objective measurement Dr Allan De Boos Australian Wool Innovation What is this talk all about? Fabric quality. The

More information

TECHNICAL MANUAL. TERADOWEL and ULTRADOWEL. Reliable Dowel System for Floor Joints

TECHNICAL MANUAL. TERADOWEL and ULTRADOWEL. Reliable Dowel System for Floor Joints TECHNICAL MANUAL TERADOWEL and ULTRADOWEL Reliable Dowel System for Floor Joints Version: PEIKKO GROUP 11/2018 TERADOWEL and ULTRADOWEL Reliable Dowel System for Floor Joints Dowels manufactured from high

More information

TEST PROCEDURE FOR DYNAMIC PULL-THROUGH PERFORMANCE OF ROOFING MEMBRANES OVER FASTENER HEADS OR FASTENERS WITH METAL BEARING PLATES

TEST PROCEDURE FOR DYNAMIC PULL-THROUGH PERFORMANCE OF ROOFING MEMBRANES OVER FASTENER HEADS OR FASTENERS WITH METAL BEARING PLATES TESTING APPLICATION STANDARD (TAS) 117(B)-95 TEST PROCEDURE FOR DYNAMIC PULL-THROUGH PERFORMANCE OF ROOFING MEMBRANES OVER FASTENER HEADS OR FASTENERS WITH METAL BEARING PLATES 1. Scope 1.1 This Protocol

More information

Copyright Notice. HCL Technologies Ltd. All rights reserved. A DEFINITIVE GUIDE TO DESIGN FOR MANUFACTURING SUCCESS

Copyright Notice. HCL Technologies Ltd. All rights reserved. A DEFINITIVE GUIDE TO DESIGN FOR MANUFACTURING SUCCESS Copyright Notice HCL Technologies Ltd. All rights reserved. No part of this document (whether in hardcopy or electronic form) may be reproduced, stored in a retrieval system, or transmitted, in any form

More information

Load application in load cells - Tips for users

Load application in load cells - Tips for users Load application in load cells - Tips for users Correct load application on the load cells is a prerequisite for precise weighing results. Be it load direction, support structure or mounting aids load

More information

DEVELOPMENT OF A NOVEL TOOL FOR SHEET METAL SPINNING OPERATION

DEVELOPMENT OF A NOVEL TOOL FOR SHEET METAL SPINNING OPERATION DEVELOPMENT OF A NOVEL TOOL FOR SHEET METAL SPINNING OPERATION Amit Patidar 1, B.A. Modi 2 Mechanical Engineering Department, Institute of Technology, Nirma University, Ahmedabad, India Abstract-- The

More information

Application Tooling Specification Sheet

Application Tooling Specification Sheet Tool Kit Order No. 63811-7370 FEATURES Application Tooling Specification Sheet TYPE 4C Hand Crimp Tool Order No. 63811-7300 % A full cycle ratcheting hand tool ensures complete crimps % Ergonomically designed

More information

Module 2 WAVE PROPAGATION (Lectures 7 to 9)

Module 2 WAVE PROPAGATION (Lectures 7 to 9) Module 2 WAVE PROPAGATION (Lectures 7 to 9) Lecture 9 Topics 2.4 WAVES IN A LAYERED BODY 2.4.1 One-dimensional case: material boundary in an infinite rod 2.4.2 Three dimensional case: inclined waves 2.5

More information

Types of Glass by Composition

Types of Glass by Composition What is Glass? An amorphous fusion of mineral compounds that produces a transparent solid when cooled. A 3D network of atoms which lacks the repeated, orderly arrangement typical of crystalline materials.

More information

UNDERSTANDING THE IMPORTANCE OF PUNCH LENGTH AND CUP DEPTH

UNDERSTANDING THE IMPORTANCE OF PUNCH LENGTH AND CUP DEPTH WHITEPAPER UNDERSTANDING THE IMPORTANCE OF PUNCH LENGTH AND CUP DEPTH { Manufacturing tablets to a uniform hardness, weight, and thickness requires tablet press punches of consistent length. We will describe

More information

Anti-check bolts as means of repair for damaged split ring connections

Anti-check bolts as means of repair for damaged split ring connections Anti-check bolts as means of repair for damaged split ring connections Quenneville, J.H.P. 1 and Mohammad, M. 2 ABSTRACT There are numerous large span timber hangars dating back to the Second World War.

More information

Joining Metals with Stamping Dies

Joining Metals with Stamping Dies 733563AA Joining Metals with Stamping Dies A Die Builder s Guide to BTM s sheet metal clinch joining systems. A supplement for BTM s Tog-L-Loc and Lance-N-Loc Tooling Catalogs to assist in the proper application

More information

# in 1 Metal Worker Auxiliary Operating Instructions

# in 1 Metal Worker Auxiliary Operating Instructions 340 Snyder Avenue, Berkeley Heights, NJ 07922 www.micromark.com MMTechService@micromark.com Tech Support: 908-464-1094, weekdays, 1pm to 5 pm ET #86556 3 in 1 Metal Worker Auxiliary Operating Instructions

More information

Materials. Density, Hooke's law, Young modulus. 174 minutes. 174 marks. Page 1 of 29

Materials. Density, Hooke's law, Young modulus. 174 minutes. 174 marks. Page 1 of 29 Materials Density, Hooke's law, Young modulus 174 minutes 174 marks Page 1 of 29 Q1. A uniform wooden beam of mass 35.0 kg and length 5.52 m is supported by two identical vertical steel cables A and B

More information

Joining Metals with Stamping Dies

Joining Metals with Stamping Dies 733563 Joining Metals with Stamping Dies A Die Builder s Guide to BTM Corporation s sheet metal clinch joining systems. A supplement for BTM Corporation s Tog-L-Loc and Lance-N-Loc Tooling Catalogs to

More information

Korean standards of visual grading and establishing allowable properties of softwood structural lumber

Korean standards of visual grading and establishing allowable properties of softwood structural lumber Korean standards of visual grading and establishing allowable properties of softwood structural lumber Park, Moon-Jae 1, Shim, Kug-Bo 1 ABSTRACT Korean standards related to wood products such as "Sizes

More information

DESIGN OF MACHINE MEMBERS-I

DESIGN OF MACHINE MEMBERS-I Code No: R31035 R10 Set No: 1 JNT University Kakinada III B.Tech. I Semester Regular/Supplementary Examinations, Dec - 2014/Jan -2015 DESIGN OF MACHINE MEMBERS-I (Mechanical Engineering) Time: 3 Hours

More information

KEITH PANEL SYSTEMS FUNDERMAX- MAX EXTERIOR EXPOSED FASTENER PRESSURE EQUALIZED WALL SYSTEM

KEITH PANEL SYSTEMS FUNDERMAX- MAX EXTERIOR EXPOSED FASTENER PRESSURE EQUALIZED WALL SYSTEM S Y S T E M D E T A I L S FUNDERMAX- MAX EXTERIOR EXPOSED FASTENER PRESSURE EQUALIZED WALL SYSTEM PAGE TITLE PAGE Table of Contents Fundermax Max Exterior Product Information Design and Installation Information

More information

Sheet metal tutorial. To set the bend radius Right click on the first sheet metal icon in the command manager and specify a bend radius or 1mm.

Sheet metal tutorial. To set the bend radius Right click on the first sheet metal icon in the command manager and specify a bend radius or 1mm. Sheet metal tutorial In the following tutorial you will cover the basic features of the Solid Works sheet metal tool by modelling the component shown opposite. Activating Sheet metal mode Sheet metal components

More information

INTRODUCTION. 1. How to construct the cross sectional shapes

INTRODUCTION. 1. How to construct the cross sectional shapes 1 Making the Violin Geometric Arching Shape and A Method of Thickness Graduating Plates By Robert Zuger Mejerigatan 16 SE26734 Bjuv Sweden Email: zuger.robert@telia.com INTRODUCTION In an earlier report

More information

PRECISELY CONTROLLED STRIP TENSION. The key to success in innovative production processes PERFECT STRIP FLATNESS TOP-QUALITY SURFACE

PRECISELY CONTROLLED STRIP TENSION. The key to success in innovative production processes PERFECT STRIP FLATNESS TOP-QUALITY SURFACE PERFECT STRIP FLATNESS TOP-QUALITY SURFACE STRAIGHT-EDGE COILS HIGH YIELD PRECISELY CONTROLLED STRIP TENSION The key to success in innovative production processes UMLAUF-BRIDLES increase and decrease strip

More information

"Papermaking, Part 3: Finishing" Edited by Mikko Jokio

Papermaking, Part 3: Finishing Edited by Mikko Jokio Item Number: 0202FIN10 ISBN: 952-5216-10-1 Contents include: Calendering Reeling and winding Roll wrapping and handling Sheet finishing Chapter 1 - Calendering 1 Introduction...14 2 Calendering types...15

More information

Electronics Materials-Stress caused by thermal mismatch

Electronics Materials-Stress caused by thermal mismatch Electronics Materials-Stress caused by thermal mismatch The point was well made in the early 1970s by David Boswell that surface mount assemblies have many issues in common with civil engineering. For

More information

Metal Cutting. Content. Content. 1.0 Introduction. 5. Bendalir pemotongan 6. Proses Melarik 7. Proses Mengisar

Metal Cutting. Content. Content. 1.0 Introduction. 5. Bendalir pemotongan 6. Proses Melarik 7. Proses Mengisar Metal Cutting Assoc Prof Zainal Abidin Ahmad Dept. of Manufacturing & Industrial Engineering Faculty of Mechanical Engineering Universiti Teknologi Malaysia Content 1.0 Pengenalan 1.1 Pengkelasan proses

More information

Tech Notes. GEL COAT FLEXIBILITY The Flex Strip Test. INTERPLASTIC CORPORATION Thermoset Resins Divison ISSUE 1

Tech Notes. GEL COAT FLEXIBILITY The Flex Strip Test. INTERPLASTIC CORPORATION Thermoset Resins Divison ISSUE 1 INTERPLASTIC CORPORATION Thermoset Resins Divison ISSUE Tech Notes GEL COAT FLEXIBILITY The Flex Strip Test Issue Date: /4/00 Document ID: TN-TS-0A 00 Interplastic Corporation Gel Coat Flexibility: The

More information

MANUFACTURING TECHNOLOGY

MANUFACTURING TECHNOLOGY MANUFACTURING TECHNOLOGY UNIT II SHEET METAL FORMING PROCESSES Sheet metal Process in detail Cutting (Shearing) Operations Manufacturing Technology In this operation, the work piece is stressed beyond

More information

CHAPTER 2 ELECTROMAGNETIC FORCE AND DEFORMATION

CHAPTER 2 ELECTROMAGNETIC FORCE AND DEFORMATION 18 CHAPTER 2 ELECTROMAGNETIC FORCE AND DEFORMATION 2.1 INTRODUCTION Transformers are subjected to a variety of electrical, mechanical and thermal stresses during normal life time and they fail when these

More information

Lab #1 HANDLING FIBERS, NUMERICAL APERTURE

Lab #1 HANDLING FIBERS, NUMERICAL APERTURE Lab #1 HANDLING FIBERS, NUMERICAL APERTURE OBJECTIVES: In this project, you will learn how to prepare fiber ends for use in the laboratory. You will be able to observe the geometry of a fiber and you will

More information

SMAW LESSON #1: Initiating and maintaining an arc using the scratch start method

SMAW LESSON #1: Initiating and maintaining an arc using the scratch start method SMAW LESSON #1: Initiating and maintaining an arc using the scratch start method OBJECTIVE: Upon completion of this lesson the learner will be able to strike and maintain an arc using SMAW on steel plate

More information

WRINKLES & PIPING IN PAPER REELS. By: D K Singhal

WRINKLES & PIPING IN PAPER REELS. By: D K Singhal WRINKLES & PIPING IN PAPER REELS By: D K Singhal Wrinkles & Piping Wrinkles and piping is often a serious problem, and needs immediate attention to real cause of the problem. If the real cause is not detected,

More information

PAGE 12 : THREAD MEASUREMENT TECHNIQUE (Plated and unplated thread gauges)

PAGE 12 : THREAD MEASUREMENT TECHNIQUE (Plated and unplated thread gauges) 40-60 Delaware St. MACHINING Part No. PR301 - INDEX- MACHINING SECTION Revision: 01/12/2012 PAGE 1 This Quality Standard applies to all metallic parts unless otherwise specified by drawing or specification.

More information

Technical Guide for Glass Cutting Section 1 - Two Basic Types of Cutting

Technical Guide for Glass Cutting Section 1 - Two Basic Types of Cutting Section 1 - Two Basic Types of Cutting Part 2 Pressure Cutting Basic Principles of Pressure Cutting This portion of Part 2 deals with those aspects of the basic principles of glass cutting that are common

More information

Wall Form Design Part I

Wall Form Design Part I Wall Form Design Part I Lecture 3 Bearing or rushing Bearing Stresses (ompression Perpendicular to the Grain) Allowable stresses for compression perpendicular to the grain are available from tables providing

More information

Challenges in Winding Flexible Packaging Film

Challenges in Winding Flexible Packaging Film Challenges in Winding Flexible Packaging Film Abstract By R. Duane Smith Product Manager- Specialty Winding Black Clawson Converting Machinery Davis Standard LLC Fulton, New York, USA Every Flexible Film

More information

Materials & Processes in Manufacturing

Materials & Processes in Manufacturing 2003 Bill Young Materials & Processes in Manufacturing ME 151 Chapter 21 Fundamentals of Chip Type Machining Processes 1 Materials Processing 2003 Bill Young 2 Introduction Machining is the process of

More information

In-line measurements of rolling stock macro-geometry

In-line measurements of rolling stock macro-geometry Optical measuring systems for plate mills Advances in camera technology have enabled a significant enhancement of dimensional measurements in plate mills. Slabs and as-rolled and cut-to-size plates can

More information

Tool School - Rotary Draw Bending Tooling. An Engineer s Guide to Bending Tubes

Tool School - Rotary Draw Bending Tooling. An Engineer s Guide to Bending Tubes Tool School - Rotary Draw Bending Tooling An Engineer s Guide to Bending Tubes Tube Form Solutions Tool School Rotary Draw Bending Tooling Tool School Agenda: Introduction To Rotary Draw Bending Engineering

More information

Cutting with broach. You can find here some notices about broaching operation. Fig.N 1

Cutting with broach. You can find here some notices about broaching operation. Fig.N 1 Cutting with broach You can find here some notices about broaching operation. Fig.N 1 Amount of cut per tooth This parameter depends on many characteristic of broaching operation like: Material of the

More information

ERECTION & CONSTRUCTION

ERECTION & CONSTRUCTION ERECTION & CONSTRUCTION High Strength Structural Bolting Author: Clark Hyland Affiliation: Steel Construction New Zealand Inc. Date: 24 th August 2007 Ref.: Key Words High Strength Bolts; Property Class

More information

CARPENTER MACHINE SERIES

CARPENTER MACHINE SERIES CARPENTER MACHINE SERIES THIS SECTION CONTAINS BLADES FOR THE FOLLOWING MACHINE SERIES: 47C M-77 72A-S M93 / M97 / M98 / M99 72B Your Global Source for Wire Processing Perishable Tooling www.lakesprecision.com

More information

Metal Stamping Glossary

Metal Stamping Glossary Metal Stamping Glossary Alloy - A substance that has metallic properties and is composed of two or more chemical elements of which at least one is an elemental metal. Annealing - A process involving the

More information

Webinar Questions & Answers: Investigating Wind & Hail Damage

Webinar Questions & Answers: Investigating Wind & Hail Damage Webinar Questions & Answers: Investigating Wind & Hail Damage Section A: Hail 1. Can hail direction change in a single storm, damaging all slopes of a structure? Hail can fall straight down or at an angle,

More information

Machining of Wood using a Rip Tooth: Effects of Work-piece Variations on Cutting Mechanics

Machining of Wood using a Rip Tooth: Effects of Work-piece Variations on Cutting Mechanics Machining of Wood using a Rip Tooth: Effects of Work-piece Variations on Cutting Mechanics Naylor, Andrew. 1* Hackney, Philip. 1 Clahr, Emil. 2 1 School of Computing, Engineering and Information Sciences,

More information

PAWOMAT MACHINE SERIES

PAWOMAT MACHINE SERIES PAWOMAT MACHINE SERIES THIS SECTION CONTAINS BLADES FOR THE FOLLOWING MACHINE SERIES: PAWOMAT MACHINE SERIES B-12-N B-12, B-16, 210B MINICRIMP MACHINE SERIES Your Global Source for Wire Processing Perishable

More information

MACHINE TOOLS GRINDING MACHINE TOOLS

MACHINE TOOLS GRINDING MACHINE TOOLS MACHINE TOOLS GRINDING MACHINE TOOLS GRINDING MACHINE TOOLS Grinding in generally considered a finishing operation. It removes metal comparatively in smaller volume. The material is removed in the form

More information

HOLLOW CORRUGATED SHEETS

HOLLOW CORRUGATED SHEETS P R O D U C T C A T A L O G U E HOLLOW CORRUGATED SHEETS www.tuflite.com Bangalore (Head Office) #240/1, Ganesh Krupa, 18th Cross, Sadashivanagar, Bangalore- 560 080, India P: +91 80 4252 5252 F: +91 80

More information

Nonlinear behavior of Reinforced Concrete Infilled Frames using ATENA 2D

Nonlinear behavior of Reinforced Concrete Infilled Frames using ATENA 2D Available online at www.ijacskros.com Indian Journal of Advances in Chemical Science S1 (2016) 173-178 Nonlinear behavior of Reinforced Concrete Infilled Frames using ATENA 2D M. D. Raghavendra Prasad,

More information

Metal Cutting (Machining)

Metal Cutting (Machining) Metal Cutting (Machining) Metal cutting, commonly called machining, is the removal of unwanted portions from a block of material in the form of chips so as to obtain a finished product of desired size,

More information

THEORY OF METAL CUTTING

THEORY OF METAL CUTTING THEORY OF METAL CUTTING INTRODUCTION Overview of Machining Technology Mechanism of chip formation Orthogonal and Oblique cutting Single Point and Multipoint Cutting Tools Machining forces - Merchant s

More information

MANUFACTURING PROCESSES

MANUFACTURING PROCESSES 1 MANUFACTURING PROCESSES - AMEM 201 Lecture 9: Sheet Metal Cutting & Forming Processes DR. SOTIRIS L. OMIROU Sheet Metal Cutting & Forming Processes - Application field- Sheet metal processing is an important

More information

Multi-Wire Drift Chambers (MWDC)

Multi-Wire Drift Chambers (MWDC) Multi-Wire Drift Chambers (MWDC) Mitra Shabestari August 2010 Introduction The detailed procedure for construction of multi-wire drift chambers is presented in this document. Multi-Wire Proportional Counters

More information

User's Guide for Tooling

User's Guide for Tooling BTM's Tog-L-Loc and Lance-N-Loc Cross Section of a Lance-N-Loc Tog-L-Loc & Lance-N-Loc are protected by patents in the U.S.A. and most other industrialized nations. Tog-L-Loc & Lance-N-Loc are registered

More information

Fingerprinting the Gravure Press. Presented by: Bruce G. Beyer GAA 2008 all rights reserved

Fingerprinting the Gravure Press. Presented by: Bruce G. Beyer GAA 2008 all rights reserved Fingerprinting the Gravure Press Presented by: Bruce G. Beyer GAA 2008 all rights reserved 1 What is Fingerprinting? A method or program to quantitatively study a process by examining and recording its

More information

Structural Strength of Lapped Cold-Formed Steel Z-Shaped Purlin Connections with Vertical Slotted Holes

Structural Strength of Lapped Cold-Formed Steel Z-Shaped Purlin Connections with Vertical Slotted Holes Missouri University of Science and Technology Scholars' Mine International Specialty Conference on Cold- Formed Steel Structures (2014) - 22nd International Specialty Conference on Cold-Formed Steel Structures

More information

ISO 7438 INTERNATIONAL STANDARD. Metallic materials Bend test. Matériaux métalliques Essai de pliage. Second edition

ISO 7438 INTERNATIONAL STANDARD. Metallic materials Bend test. Matériaux métalliques Essai de pliage. Second edition INTERNATIONAL STANDARD ISO 7438 Second edition 2005-06-15 Metallic materials Bend test Matériaux métalliques Essai de pliage Reference number ISO 7438:2005(E) ISO 2005 PDF disclaimer This PDF file may

More information

Web a Oscillation A Study of Oscillation Part 1. Finishing Technologies, Inc a.1

Web a Oscillation A Study of Oscillation Part 1. Finishing Technologies, Inc a.1 Web 201.52a Oscillation A Study of Oscillation Part 1 2017 David Roisum, Ph.D. Courtesy Freepik from www.flaticon.com Finishing Technologies, Inc. 201.52a.1 Bagginess and Gage Variation Winding Unwinding

More information